Finding the Fourth Proportional to 45,403,537.80, 68,105,306.70 and 31,532,927.70
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Solution
The fourth proportional to 45,403,537.80, 68,105,306.70 and 31,532,927.70 is: 47,299,391.55
Step by Step Solution
- Step 1: Write the proportion equation
45,403,537.80 : 68,105,306.70 = 31,532,927.70 : x - Step 2: Convert to fraction form
45,403,537.80/68,105,306.70 = 31,532,927.70/x - Step 3: Cross multiply
45,403,537.80x = 68,105,306.70 × 31,532,927.70 - Step 4: Simplify right side
45,403,537.80x = 2,147,559,712,157,425.75 - Step 5: Solve for x
x = 2,147,559,712,157,425.75/45,403,537.80 - Step 6: Final answer
x = 47,299,391.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.